Hem > Antropologi, Asien > Kinesiska superfarfäder upptäckta

Kinesiska superfarfäder upptäckta

oktober 20, 2013

Tre kinesiska män som levde för omkring 6000 år sedan har idag gett upphov till 270 miljoner kinesiska män, eller cirka 40 procent av alla kinesiska män.

Abstrakt:

Demographic change of human populations is one of the central questions for delving into the past of human beings. To identify major population expansions related to male lineages, we sequenced 78 East Asian Y chromosomes at 3.9 Mbp of the non-recombining region (NRY), discovered >4,000 new SNPs, and identified many new clades. The relative divergence dates can be estimated much more precisely using molecular clock. We found that all the Paleolithic divergences were binary; however, three strong star-like Neolithic expansions at ~6 kya (thousand years ago) (assuming a constant substitution rate of 1e-9/bp/year) indicates that ~40% of modern Chinese are patrilineal descendants of only three super-grandfathers at that time. This observation suggests that the main patrilineal expansion in China occurred in the Neolithic Era and might be related to the development of agriculture.

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Kategorier:Antropologi, Asien
  1. Martin
    oktober 20, 2013 kl. 8:05 e m

    Intressant, tack! Undrar hur det ser ut i vårt DNA?

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